The 13^th century ruins of Newcastle Emlyn castle overlook the winding river Teifi below. Founded around 1240 by the Welsh Prince, Maredudd ap Rhys, Newcastle Emlyn castle is unique in that very few Welsh-built stone castles can be found in West Wales. Following a series of attacks and refurbishments over the following centuries, the castle was finally blown up with gunpowder in 1645 during the English Civil war. Today visitors can walk amongst the ruins of the walls and gatehouse that still remain.